.all_content {
    width: 100%;
    height: 100%;
    background-color: #FAFAFA;
    display: flex;
    flex-direction: column;
}

.content {
    height: 300px;
    margin: 50px auto;
}

.banner {
    font-size: 24px;
    font-weight: 400;
    line-height: 58px;
}

.list_item_box {
    float: left;
    overflow: hidden;
    width: 187px;
    margin-right: 50px;
}

.list_item_pic {
    position: relative;
    display: block;
    overflow: hidden;
    margin-bottom: 15px;
    width: 187px;
    height: 187px;
}

.list_item_pic img {
    width: 100%;
}

.list_item_pic img:hover {
    transform: scale(1.1) translateZ(0);
    transition: transform 0.75s;
}

.list_title {
    white-space: nowrap;
    text-overflow: ellipsis;
    line-height: 22px;
    font-size: 100%;
    overflow: hidden;
}

.list_author {
    color: #999;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 22px;
    line-height: 12px;
    font-size: 12px;
}

.list_price {
    position: relative;
}

.list_price_num {
    line-height: 28px;
    color: #999;
    font-weight: bold;
}

.list_price a {
    position: absolute;
    top: 0;
    right: 0;
    margin-right: 0;
    font-size: 12px;
    line-height: 25px;
    height: 25px;
    width: 80px;
    padding: 0;
    text-align: center;
    border: 1px solid #c9c9c9;
    text-decoration: none;
    color: #000;
}

.container:nth-child(3) {
    background-color: #333333;
    width: 100%;
    height: 550px;
}